Big Four

An unexpected visitor comes into Hercule Poirot''s bedroom and collapses on the floor. The only clue as to what he wants is his repeating Poirot''s name and address and writing the number 4, many times. When Poirot’s friend Hastings jokingly calls it “The Mystery of the Big Four,” The visitor begins speaking about an international crime cartel of that name. He describes the four leaders: Number 1 ...